import java.util.Arrays;

public class MaoPaoPaiXv {
    public static void main(String[] args) {
        int[] arr={5,2,3,1};
        for (int j = 0; j < arr.length - 1; j++) {
            for (int i = 0; i < arr.length-1-j; i++) {
                if(arr[i]>arr[i+1]){
                    int temp=arr[i];
                    arr[i]=arr[i+1];
                    arr[i+1]=temp;
                }
            }
        }
        System.out.println(Arrays.toString(arr));
    }
}